Fear and rejection
If I share my thoughts, I could be rejected. If I publish my work, it could be ignored. If I say something, I might look stupid.
But the alternative is worse.
If I don’t share my thoughts... If I don’t publish my work... If I don’t say something...
Put the fear aside. Find a corner, and tuck it away. Share. Publish. Speak.
Forget about being rejected. Do the rejection yourself and reject the fear.